fulltext.study @t Gmail

Improvement of adhesion of Pt-free counter electrodes for low-cost dye-sensitized solar cells

Paper ID Volume ID Publish Year Pages File Format Full-Text
26232 43941 2012 6 PDF Available
Title
Improvement of adhesion of Pt-free counter electrodes for low-cost dye-sensitized solar cells
Abstract

We fabricated low-cost carbon and carbides counter electrodes (CEs) with excellent adhesion by adding an industrial conductive carbon paste (CC) as a binder for dye-sensitized solar cells (DSSCs). We compared the electrochemical catalytic activity of CC and carbon dye (Cd)/CC in the reduction of triiodide to iodide using cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). CC and Cd/CC electrodes both exhibit electrochemical catalytic activity for triiodide reduction. After investigating the influence of CC on the performance of DSSCs, we also chose several transition metal carbides, including molybdenum carbide (MoC), tungsten carbide (WC), ordered mesoporous carbon (OMC), MoC embedded in OMC (MoC-OMC), and WC embedded in OMC (WC-OMC) as catalytic materials of CEs. DSSCs based on the carbon and carbides CEs reached efficiencies of 4.50–6.81%. The results indicate that CC is a superior binder for Pt-free catalysts in DSSCs.

Graphical abstract. The adhesion of Pt-free counter electrodes was improved by low-cost conductive carbon paste (CC) as a binder. Dye-sensitized solar cell (DSSC) based on carbon dye counter electrode obtained an energy conversion efficiency of 6.81%, reaching 93.0% that of sputtered Pt CE. The influences of CC on the performance of DSSC system were investigated in detail. CC is a superior binder for low-cost CEs for DSSCs.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► The adhesion of Pt-free counter electrodes was improved by low-cost conductive carbon paste (CC) as a binder. ► Dye-sensitized solar cell (DSSC) based on carbon dye counter electrode obtained an energy conversion efficiency of 6.81%, reaching 93.0% that of sputtered Pt CE. ► The influences of CC on the performance of DSSC system were investigated in detail. ► CC is a superior binder for low-cost CEs for DSSCs.

Keywords
Adhesion; Pt-free counter electrode; Dye-sensitized solar cells; Conductive carbon paste; Photovoltaic performance
First Page Preview
Improvement of adhesion of Pt-free counter electrodes for low-cost dye-sensitized solar cells
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us
Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 245, 1 October 2012, Pages 66–71
Authors
, , , , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us